Fuji Labs ZSP User manual

INZ-TN4ZSPb-E

Instruction Manual

INFRARED GAS

ANALYZER

TYPE: ZSP

– i –

INTRODUCTION

Congratulations on your purchase of Fuji Gas Analyzer. (Type:ZSP)

• Read this instruction manual carefully to ensure correct installation, operation and maintenance of the

gas analyzer. Incorrect handling may lead to unexpected trouble or injury.

• The specifications of the gas analyzer is subject to change without prior notice for improvement.

• Modification of the gas analyzer without permission is strictly prohibited. Fuji is not responsible for any

damage caused by modification made without permission.

• This safety precaution/operation manual should be kept by users of the analyzer.

•Keep this manual at hand for your future reference.

• This instruction manual must be given to final users.

Manufacturer : Fuji Electric Instrumentation Co., Ltd.

Type of product : Described in nameplate on main frame

Date of manufacture : See company nameplate on main unit.

Country of manufacture : Japan

Request

• Transcription of a part or the whole of this manual without permis-

sion is prohibited.

• The contents of this manual are subject to change without prior

notice.

Issued in June, 1997

Rev. 1st edition March, 2000

Rev. 2nd edition January, 2002

– ii –

CAUTION ON SAFETY

Before use, carefully read this “Caution on safety” so that the product is usable correctly.

• The precautions given here are of great significance to safety. Therefore, they should be observed without fail.

The precautions on safety are classified into ranks “Danger”, “Caution” and “Prohibition.”

Danger Items which pertains to incorrect handling that may lead to personal death

or serious injury

Caution Items which pertains to incorrect handling that may lead to medium trouble,

injury or physical damage

Prohibition Items which pertains to prohibition (DO NOT)

Installation, carrying, relocation and storage of gas analyzer

Danger

• This product is not explosion-proof. Do not use it in explosive gas-rich atmosphere. Otherwise,

serious accidents such as explosion and fire may be caused.

Caution

• Installation, carrying and relocation must be made by a qualified contractor or your dealer.

Incorrect installation results in falling accidents, electric shocks or fire accidents.

• The gas analyzer is heavy. Special care should be taken for installation to prevent trouble or injury due

to falling or dropping of the analyzer.

•When the gas analyzer needs to be lifted, be sure to put on gloves. Do not hold it with bare hands to

prevent injury.

• This product must be installed in a place that meets the conditions specified in the ‘instruction manual’

Use in a place that is outside the given installation conditions may cause an electric shock, fire or

malfunction.

• During installation work, attention should be paid not to allow entrance of wire fragments, etc. into the

product. Otherwise, a fire, trouble or malfunction may be caused.

– iii –

Caution on wiring

Caution

•Request an installation company or your dealer to carry out wiring.

If wiring is incomplete, shock hazard or injury may be caused.

•Class D grounding construction is mandatory. Otherwise, shock hazard may be caused.

< Caution for wiring company >

For preventing shock hazard, fire and injury, be sure to observe the following.

• Before wiring, be sure to turn off the primary power supply. If this is neglected, you may receive an

electric shock.

• For grounding, use a 600 V-IV wire having a diameter of 2 mm

2

or more and an adequate dielectric

strength.

• Connect the power supply which meets the rating of product. Connection of other power supply may

cause a fire.

• Select the diameter of input and output wires, which matches the rated current of gas analyzer.

• Be sure to use solderless terminals for connection to the input and output terminal block.

• Use the terminal block for branching the output wire.

• Be sure to fix the input and output wires onto the floor, wall surface, etc. and use a protective device

for wires.

Caution on use

Danger

• If you notice malodor or abnormal sound, stop the instrument immediately. If this is neglected, fire

may occur.

Caution

•When the analyzer is to be operated after it has been left unused for a long time, the operating proce-

dure is different from the normal stop/start procedure. It should be handled according to the procedure

shown in the instruction manual to ensure its proper performance and to prevent trouble or injury.

•Do not operate the analyzer for a long time with its door left open to avoid entry of dust into the

analyzer. Dust deposits will result in damage to the analyzer.

– iv –

Caution on use

Prohibition

• Do not insert a rod or your finger into the fan (electronic cooler at ceiling), otherwise injury may be

caused by the rotating blades.

• Do not touch metal, finger, etc. to the input and output terminal block of analyzer. Otherwise, shock

hazard or injury may be caused.

• Smoking and use of fire/flame is prohibited in the vicinity of the gas analyzer. Otherwise, a fire may

occur.

•A water-filled container such as a bucket should not be placed on the roof of the gas analyzer having

indoor specifications. If such a container turns over, spilled water may cause shock hazard or burning

inside the analyzer.

Caution on maintenance / inspection

Danger

•When handling standard gas such as calibration gas, read the instruction manual for the standard gas

for correct handling. Special care should be taken when handling hazardous gas such as CO gas and

the like to prevent poisoning.

• During maintenance or inspection, be sure to turn ON the ventilation fan in the analyzer to prevent

poisoning due to gas leakage.

• When the gas filter of the analyzer is to be replaced or the washing unit needs maintenance, be sure to

close the calibration gas valve. Especially, if the calibration gas valve is located at the sample gas

inlet, the replacing or washing shall be done after closing the calibration gas valve to prevent poison-

ing or other trouble.

Caution

• The gas converter is heated to about 220°C. When the catalytic agent needs to be replaced, turn OFF

the power for the converter and use heat-proof gloves about 30 minutes later.

• When the fuse is blown off, check the cause of it and replace it with the same type of fuse having the

same capacity to prevent electric shocks or other trouble.

• When the analyzer is provided with a power leak relay, press the test button to confirm proper opera-

tion before making maintenance or inspection to prevent electric shocks.

• Be sure to lock the door. Do not allow unauthorized persons to use the door key. Do not touch the

door carelessly to prevent electric shocks and other trouble.

The following items must be observed to prevent electric shocks or injury and to ensure safety.

• Take off metallic objects such as wrist watch before starting the work.

• Do not touch the device with wet hands.

– v –

Others

Caution

• When trouble cannot be remedied even after following the instruction manual, contact your dealer or

Fuji's service station (serivice engineer). Do not disassemble the device, as it results in electric shocks

or injury.

• Do not use replacement parts which are not specified by makers. Use of these parts will not only

provide the required performance but also result in damage or other trouble.

• Replacement parts used for maintenance must be handled as incombustible objects.

– vi –

CONTENTS

INTRODUCTION ................................................................................................................................................... i

CAUTION ON SAFETY ....................................................................................................................................... ii

1. OUTLINE....................................................................................................................................................... 1

2. SPECIFICATIONS ........................................................................................................................................ 1

3. COMPOSITION ............................................................................................................................................. 1

4. INSTALLATION ........................................................................................................................................... 2

4.1 Selection of installation site ................................................................................................................ 2

4.2 Selection of gas sampling location...................................................................................................... 2

4.3 Installation work.................................................................................................................................. 3

4.4 Connection of cables ........................................................................................................................... 3

4.5 Connection of pipes............................................................................................................................. 3

5. DESCRIPTION OF EACH PART ................................................................................................................. 5

6. PREPARATION FOR OPERATION ............................................................................................................ 5

6.1 Injection of clean water ....................................................................................................................... 5

6.2 Supply of external power .................................................................................................................... 5

6.3 Check of sample piping, exhaust piping, etc....................................................................................... 5

6.4 Airtightness test................................................................................................................................... 6

6.5 Setting of temperature inside locker.................................................................................................... 6

6.6 Warm-up time ..................................................................................................................................... 6

7. INDICATION/OPERATION PANEL ........................................................................................................... 7

7.1 Name and description of each component of indication/operation panel ........................................... 7

7.2 Function and indication of indication/operation panel........................................................................8

7.3 General operation of indication/operation panel ................................................................................. 9

8. CALIBRATION ........................................................................................................................................... 10

8.1 Kinds of standard gas ........................................................................................................................ 10

8.2 Preparation of standard gas ............................................................................................................... 10

8.3 Calibration concentration setting (except zirconia O

2

sensor) .......................................................... 12

8.4 Calibration concentration setting (zirconia O

2

sensor) ..................................................................... 14

8.5 Zero calibration (air point calibration in case of zirconia O

2

sensor) ............................................... 16

8.6 Span calibration (low concentration point calibration in case of zirconia O

2

sensor) ...................... 17

8.7 Auto calibration................................................................................................................................. 18

9. OPERATION ............................................................................................................................................... 25

9.1 Operating procedure .......................................................................................................................... 25

– vii –

10. MAINTENANCE ......................................................................................................................................... 26

10.1 Routine maintenance and inspection................................................................................................. 26

10.2 Periodic maintenance and inspection ............................................................................................... 28

10.3 Other maintenance and inspection .................................................................................................... 28

10.4 Concentration guarantee term of standard gas cylinder (for NO

x

, SO

2

, CO and O

2

analyzer) ......... 29

10.5 Maintenance of sampling device....................................................................................................... 29

10.6 Maintenance of zirconia O

2

sensor.................................................................................................... 35

10.7 Others, major component figures ...................................................................................................... 35

11. STANDARD ACCESSORIES AND SPARES ........................................................................................... 36

11.1 Standard accessories.......................................................................................................................... 36

11.2 Spares for 1 year (optional)............................................................................................................... 37

12. PROCESSING OF HEATING PIPE ENDS ................................................................................................ 38

12.1 Outline............................................................................................................................................... 38

12.2 End processing method ..................................................................................................................... 39

12.3 Check after piping ............................................................................................................................. 41

12.4 Clamp support ................................................................................................................................... 41

12.5 Specifications of tube trace ............................................................................................................... 42

12.6 Specifications of heating pipe ........................................................................................................... 42

13. TROUBLESHOOTING ............................................................................................................................... 43

13.1 Troubleshooting of instrument .......................................................................................................... 43

13.2 Error codes and remedies .................................................................................................................. 44

14. SPECIFICATIONS ....................................................................................................................................... 45

CODE SYMBOLS ............................................................................................................................................... 49

SAMPLING SYSTEM BLOCK DIAGLAM ...................................................................................................... 50

OUTLINE DIAGRAM......................................................................................................................................... 52

CONNECTION DIAGRAM ................................................................................................................................ 53

– 1 –

1. OUTLINE

The infrared gas analyzer (ZSP) can continuously and accurately measure the concentration of gases such as NOx,

SO

2

, CO, CO

2

and O

2

contained in the flue gas from a stationary generating source. The analyzer is available in

both single-component and multi-component types depending on customer’s specification. The actual analyzer

may somewhat differ from the descriptions in this manual depending on the specifications demanded by each

customer. For outline diagram, piping system, hardware configuration, specifications, standard accessories, spares

and supplies, refer to the delivery specifications submitted individually.

Note: For details of the infrared gas analyzer, refer to the instruction manual INZ-TN2 ZRG separately

prepared.

2. SPECIFICATIONS

Please refer to Chapter 14. Specifications. Note that the contents of the separately issued data sheet have priority.

3. COMPOSITION

(1) Gas sampling section 1 set (depending on customers’ designation)

(2) Gas piping 1 set (depending on customers’ designation)

(3) Accommodation locker 1

Infrared gas analyzer ZRG 1 or 2 (depending on customers’ designation)

Zirconia O

2

sensor ZFK 3, 4 1 (depending on customers’ designation)

Converter ZDL 1 (for NO

x

measurement)

Sampling 1 set

Standard gas, pressure regulator 1 set (depending on customers’ designation)

Standard accessories 1 set

Spares and supplies for 1 year 1 set (depending on customer’s designation)

– 2 –

4. INSTALLATION

Danger

• This product is not explosion-proof. Do not use it in explosive gas-rich atmosphere. Otherwise, serious

accidents such as explosion and fire may be caused.

Caution

• Installation, carrying and relocation must be made by a qualified contractor or your dealer.

Incorrect installation results in falling accidents, electric shocks or fire accidents.

• The gas analyzer is heavy. Special care should be taken for installation to prevent trouble or injury due

to falling or dropping of the analyzer.

• When the gas analyzer needs to be lifted, be sure to put on gloves. Do not hold it with bare hands to

prevent injury.

• This product must be installed in a place that meets the conditions specified in the ‘instruction manual.’

Use in a place that is outside the given installation conditions may cause an electric shock, fire or mal-

function.

• During installation work, attention should be paid not to allow entrance of wire fragments, etc. into the

product. Otherwise, a fire, trouble or malfunction may be caused.

There are a number of conditions which must be met for operating the gas analyzer stably over a long time.

4.1 Selection of installation site

A site which satisfies the following conditions should be selected for installation of the analyzer.

(1) A place which is near the gas sampling location

(2) A place which is not exposed to direct sunlight or heat radiated from a high temperature object (One

which is not exposed to rain or water splash in case of indoor type)

(3) A place which has a clean atmosphere (dust and corrosive gas not present)

(4) A place with a minimum of vibration

(5) A place where daily variation in temperature is minimum

4.2 Selection of gas sampling location

A place which satisfies the following conditions should be selected.

(1) A typical place where the gases to be analyzed exist

(2) Where the gases always flow without stagnation

(3) A place easy of access for maintenance and inspection

(4) Where the gases respond quickly to a change in the process operating conditions

(5) Where variation in pressure, temperature, etc. is minimum

– 3 –

4.3 Installation work

For installation of the analyzer locker and the extractor, follow the piping instructions in Fig. 4-1 and the

separately issued approval drawings (outline diagrams, sampling system diagram).

(1) Countermeasures for cold climate

(a) Freeze prevention of gas piping

(b) Freeze prevention of drain pot

(c) Freeze prevention of bypass and drain pipes

(2) Countermeasurement for vibration

When installing in a place where vibration is considerable, the locker should be floated on antivibration

rubber pads.

4.4 Connection of cables

Caution

• Request an installation company or your dealer to carry out wiring.

If wiring is incomplete, shock hazard or injury may be caused.

• Class D grounding construction is mandatory. Otherwise, shock hazard may be caused.

For preventing shock hazard, fire and injury, be sure to observe the following.

• Before wiring, be sure to turn off the primary power supply. If this is neglected, you may receive and

electric shock.

• For grounding, use a 600 V-IV wire having diameter of 2 mm

2

or more and an adequate dielectric

strength.

• Connect the power supply which meets the rating of product. Connection of other power supply may

cause a fire.

• Select the diameter of input and output wires, which matches the rated current of gas analyzer.

• Be sure to use solderless terminals for connection to the input and output terminal block.

• Use the terminal block for branching the output wire.

• Be sure to fix the input and output wires onto the floor, wall surface, etc. and use a protective device for

wires.

The lead-in for AC power cables and outlet for signal wires are provided at the bottom of the analyzer or else

at the specified place. Connect AC power cables and output signal wires according to the separately issued

wiring diagrams.

Note: Avoid connecting the analyzer power supply near devices such as high-frequency heating fur-

nace or electric welder which greatly disturb the power waveform, and avoid sharing the same

power lines with such devices. Class D grounding construction (100W ground resistance) is

required.

4.5 Connection of pipes (refer to piping instructions in Fig. 4-1 and separately issued approval

drawings)

(1) Connect gas pipe between the gas extractor and the analyzer inlet (sample gas inlet). Use a joint, etc.

for ø10/ø8 Teflon pipe when connecting to ensure there will be no leakage.

(2) Additionally tighten the joint section if necessary

– 4 –

Fig. 4-1 Piping procedure

Note 1) To prevent aspiration of leaked air

Note 2) Install so that pipe end comes to nearly center of flue and is at right angle to the gas flow.

Note 3) Peel off heating pipe by about 2m in order to air-cool measured gas.

Note 4) Provide an inclination of 15° or more on the gas pipe so that drain will not accumulate in the event

of power failure, etc.

Note 5) Exhaust and drain share the same output. In the case of indoor installation, provide a drain pot

and carry out drain separation, and exhaust air outside (pipe inner diameter should be ø8 or

more).

Note 6) Use this when utilizing a heating pipe. (Maker : Fujikin, Japan)

Note 7) The gas pipe (ø10/ø8 teflon tube) should be inserted directly into the gas conditioner.

Note 8) In outdoor application or in a cold district, protect the drain pot and pipes with a heat insulating

material, etc. to prevent drain from freezing in winter.

300

*Exhaust

+ Drain

Drain

(Note 5)

(Note 2)

Sampling

pipe

Mating flange for

installing extractor

JIS 5K 65A FF

*

Fule

(Note 1)

300 or

more

Gas extractor

ZBAK

Vertical

Horizontal

installation

Note)

Heater power supply

100V AC

Teflon pipe φ10/φ8 or tube trace

(heating pipe) SE-10C1-56-1-PVC-M

or equivalent.

Outer sheath for Teflon pipe ø10/ø8 is

PVC and bundle outer sheath is ø33.

For pipe end processing, refer to Section 12.

Power connection kit

TFC-3HPT-10JM (Note 6)

Drain

Sample tube

Filter

Gas

conditioner

* Drain port (Note 8)

Drain

Front-view diagram

Outside exhaust

Leave 300mm space for inspection

and exchange of filter.

Gas outlet facing downward (or horizontal)

Use termination kit TFC-7HPT-10JM (Note 6) or

caulk with silicone bolding agent, etc. after

insulation of heater wire (for indoor installation).

Radius 300mm

or more

* Supporting wire

Gradient of 15˚

or more (Note 4)

* Support

(Note 7)

(Note 3)

Peel off covering

by about 2m.

(φ10/φ8 teflon tube

inside heating pipe)

(Note 7)

Gas analyzer

Direct lead-in

Gas

conditioner

(in panel)

60 × 120 square

hole for wiring

*

The part marked by the asterisk is not supplied.

– 5 –

5. DESCRIPTION OF EACH PART

Please refer to Chapter 14 specification attached at the end of the manual.

6. PREPARATION FOR OPERATION

6.1 Injection of clean water

Inject clean water through the filter or air aspiration port until it overflows from the gas conditioner.

6.2 Supply of external power

Supply external power to the analyzer. And check the connections with output signal wire, etc. The exter-

nal power supply should be.........

100V±10% AC,

50/60 Hz ±1%,

with power consumption of 0.9kVA max. (excluding heating pipe).

Check with reference to the separately issued approval diagrams.

6.3 Check of sample piping, exhaust piping, etc.

Check the connection of the sample piping and if necessary, provide exhaust piping + drain piping (Pipes

with inner diameter of ø8 or more for both). When sample will be dispersed upward, then branch and water-

seal the exhaust pipe for the purpose of drain separation. Be sure to disperse the exhaust into the atmo-

sphere.

Make checks with reference to the piping instructions in Fig. 4-1 and the separately issued gas analyzer

diagram.

– 6 –

6.4 Airtightness test

(1) Piping inside panel

Since airtightness is confirmed during tests before shipment, an Airtightness test during trial run is

usually unnecessary. When a long time has passed after shipment, then carry out the following proce-

dure.

(a) Close the drain port.

(b) Connect standard gas to the sample gas inlet.

(c) Connect the transparent tube of the conditioner air suction port (see Fig. 10-1) vertically (in place

of a manometer).

(d) Flow standard gas gradually, and after reaching a pressure of about 1961Pa, close the needle valve

of the pressure regulator.

(e) Check the water level at the air suction port of the conditioner, and if the drop in the level in less

than 147Pa/min, then the error due to insufficient airtightness is negligible.

(f) If a leak is present when measuring a harmful gas, make a check by applying soapy water to the

normal pressure section while aspirating outside air.

(2) Piping outside panel

Thoroughly check the tightened condition of pipe joints. If necessary, apply pressure from the extrac-

tor outlet side and make a test as in the preceding item (1).

(3) If the airtightness is insufficient, make a test on each section, find the faulty location and make it

completely airtight. If the faulty location is before the aspirator, then air enters the gas pipe midway to

cause a drop in the indication.

6.5 Setting of temperature inside locker

Turn on power supply to a space heater depending on the ambient temperature. Ventilation fan should

always be turned ON.

6.6 Warm-up time

Turn ON the auto breaker.

(1) Gas extractor

Turn ON the power switch and warm up the extractor for at least 1 hour.

(2) Heating pipe (option)

Turn ON the power supply auto breaker of heating pipe and warm up the pipe for at least 1 hour.

(3) Electronic gas cooler

Turn ON the power switch and warm up for at least 10 minutes.

(4) NO

2

/NO converter (option)

Turn ON the switch, set the temperature regulator at 220°C, and warm up for about 30 minutes until

indication of the temperature reaches 220±2°C. 200°C for a NO/CO (+ O2) analyzer

(5) Analyzer

Turn ON the power switch and carry out warm-up.

Infrared gas analyzer: about 8 hours

Zirconia O

2

sensor: about 30 minuets

– 7 –

7. INDICATION/OPERATION PANEL

7.1 Name and description of each component of indication/operation panel

Part Name Description

q Component indication Indicates kind of gas measured.

w Main indication Indicates measured concentration. Also indicates various set-points for alarm function, auto

calibration function (option), etc.

e Unit indication lamp Indicates units of measured gas concentration.

r Day indication

Indicates current day or day of starting by means of bar in auto calibration (option) setting mode.

Indication SU MO TU WE TH FR SA

Day Sun. Mon. Tue. Wed. Thu. Fri. Sat.

t Sub indication Indicates measuring range, error code, various set points, etc.

y Range changeover key Used when changing the range. High range is set when pressing

and low range is set when

pressing

.

u Function indicator lamp Relevant lamp lights up when following functions are set.

MEAS: Lights up in measuring status.

CAL SET: Flashes in calibration concentration setting mode.

ALM SET: Flashes in alarm setting mode.

HOLD: Flashes in hold setting mode or lights steadily while hold function is activated.

RMT RANGE: Flashes in remote range setting mode or light steadily while remote range function is activated.

AUTO CAL: Flashes in auto calibration setting mode or lights steadily while auto calibration function is

activated.

i Function key Setting mode is changed at each press of this key (Refer to Section 5).

o Component selector key Set component is changed for each setting mode.

!0 Digit shift key Shift is made from highest toward lowest digit at each press of this key.

!1 Numeric input key Selected digit is incremented at each press of this key.

!2 ENT key By pressing this key after setting, the set contents are memorized and becomes valid.

!3 Zero calibration key Used for zero point calibration. (Lamp flashes in zero calibration mode.)

!4 Span calibration key Used for span calibration (Lamp flashes in span calibration mode.)

!5 Calibration start key

Start key for manual calibration. Zero is calibrated by pressing ZERO and CAL keys.

Span is calibrated by pressing SPAN and CAL keys. (CAL lamp lights steadily during calibra-

tion).

NO

X

SO

2

O

2

SU TU TH SA

MOWE FR

Vol%

ppm

Vol%

ppm

Vol%

HOLD

FUNC COMP ENT ZERO SPAN CAL

AUTO SALHEAS CAL SET SET RANCE

RANCE

2 Main indication

1 Component indication

3 Unit indication lamp

4 Day indication

5 Sub indication

6 Range changeover switch

8 Function key

7 Function indicator lamp

9 Component selector key

10 Digit shift key

11 Numeric input key

15 Calibration start key

14 Span calibration key

13 Zero calibration key

12 ENT key

(Three component of NOx, SO

2 and O2 are indication in this figure.)

– 8 –

7.2 Function and indication of indication/operation panel

This panel consists of the following functions.

Key Function Main indication Sub indication Function indication lamp

FUNC Measuring mode Measuring value Range MEAS lamp lights

Setting mode

FUNC Calib.conc.setting Calb.conc. Range CAL SET lamp lights

FUNC Alarm setting (option) Alarm value ALM SET lamp flickers*

FUNC Hold setting ON or OFF HOLD lamp flicker

FUNC Remote range setting (option) ON or OFF RMT RANGE lamp flickers*

FUNC Current time setting Hr.min. Day Auto CAL lamp flickers

FUNC Auto clib.start time setting HR.min. Day AUTO CAL lamp flickers

FUNC Auto calib.cycle setting Time AUTO CAL lamp flickers

FUNC Calib. gas flow time setting Time AUTO CAL lamp flickers*

FUNC Calib. gas flow time setting Mode No. AUTO CAL lamp flickers*

FUNC Auto calib.changeover ON or OFF AUTO CAL lamp flickers

FUNC Key lock changeover ON or OFF *

ZERO Zero calibration Measured value Range Zero key indication flickers

ZERO Span calibration Measured value Range Span key indication flickers

• When the setting mode is assumed, the analog output signal is held at the value just before entering this mode.

• When optional functions are not provided, the contents of these functions are not indicated.

* Refer to the instruction manual of the infrared gas analyzer for the items marked by the asterisks.

Auto calibration (option)

▲

– 9 –

7.3 General operation of indication/operation panel

The measuring mode is assumed when

power is turned ON. The gas concentra-

tion appears on the main indication, while

the range being used appears on the sub in-

dication.

Advice on Operation

✩When selecting the range

In the setting status, as shown in the figure

at the right, the high range is selected when

key is pressed, while the low range is

selected when key is pressed.

✩When selecting the gas component

In the setting status, as shown in the figure

at the right, the gas component can be set

by pressing COMP key.

Example: When COMP key is pressed

while the 1st component is flash-

ing, the flashing moves to the

2nd component (figure at right).

The setting for the 2nd compo-

nent is now changeable.

* The 1 component type analyzer is not pro-

vided with COMP key.

✩For releasing zero or span

If a mistake has been made in zero or span

calibration, then perform a reset in the fol-

lowing way.

The figure at the right shows an example.

If SPAN key has been pressed mistakenly

instead of ZERO key, then press SPAN

key again. Calibration is released.

If ZERO key has been pressed mistak-

enly instead of SPAN key, the press

ZERO key again.

Calibration is released.

Gas concentration

indication

Range

indication

NO

Hige rang is selected

when key is pressed

Low rang is selected

when key is pressed

1st component

2rd component

3rd component

COMP ENT ZERO SPAN CAL

ZERO SPAN

Pressing changes the settable gas component.

Pressed wrongly.

The lamp blinks.

Press again to extinguish the lamp.

Thus reset. Press the key afresh.

ZERO

– 10 –

8. CALIBRATION

8.1 Kinds of standard gas

8.1.1 When not using zirconia O

2

sensor

(1) Zero gas: N

2

or atmospheric air/instrument air depending on specification (when without verifi-

cation stipulated in the laws for measurement and weighing)

(2) Span gas: Gas of 90% or more full scale for each component, remainder is N

2

(span gas for low

range will be delivered unless otherwise specified)

8.1.2 When using zirconia O

2

sensor

(1) Zero gas: Air (Span gas of the O

2

analyzer in the laws for measurement and weighing).

(2) Span gas: 1 to 2% O

2

, remainder is N

2

. (Zero gas of the O

2

analyzer in the laws for measurement

and weighing).

Gas of 90% or more full scale for other than zirconia O

2

sensor, remainder is N

2

.

Note: For separately calibrating the low and high ranges of the zirconia O

2

sensor, supply 9 to

10% O

2

and the remainder N

2

for the low range (10%) and use air for the high range

(25%).

8.2 Preparation of standard gas

The standard gas to be used for calibration is delivered in a separate package from the locker.

Check the kind of standard gas to be used according to the sampling system diagram, and set it at the

prescribed location.

Before starting calibration, attach a pressure regulator to the standard gas.

8.2.1 How to mount pressure regulator for standard gas cylinder

(1) Before mounting a pressure regulator to the gas cylinder, clean the gas cylinder adapter. Entry of

dust into the pressure regulator may result in gas leaks.

(2) If packing is not inserted in the mounting nut for the cylinder or it is damaged, replace it with

supplied spare one.

(3) Use a spanner of a proper size, fasten the cylinder mounting nut to the gas cylinder. Mount

supplied joint to the outlet according to Item “Sampling system block diagram”.

(4) Loosen the pressure controls and then tighten the outlet controls.

(5) Open a valve of the gas cylinder, and the pressure gauge on the high pressure side indicates a

pressure of the gas cylinder by flowing gas into the pressure regulator.

(6) Turn the pressure controls clockwise to increase the secondary pressure; adjust the pressure con-

trols so that a pressure gauge on the low pressure side reads 30 kPa.

(7) Open the outlet controls to release gas.

Danger

• When handling standard gas such as calibration gas, read the instruction manual for the standard gas for

correct handling. Special care should be taken when handling hazardous gas such as CO gas and the like

to prevent poisoning.

– 11 –

Fig. 8-1 Pressure regulation for standard gas cylinder

Packing

Pressure gauge on

high pressure side

Pressure gauge on

low pressure side

Adapter

Cylinder mounting nut

Cylinder

Pressure regulator

R1/4 joint

Pressure controls

Output handle

– 12 –

8.3 Calibration concentration setting (except zirconia O

2

sensor)

Set a span value for the calibration concentration setting. (Zero point calibration concentration is fixed at

zero.)

Set the calibration gas concentration (span value).

When FUNC key is pressed in the measuring sta-

tus, the previously set span value will appear on

the main indication.

The CAL SET LED of the function indicating

lamps will flicker.

By pressing the key, the highest digit of the

main indication for the 1st component will flicker,

and the span value can not be set.

Select a range with the keys.

After selecting the range, set a span value in this

status.

The numeric value will be incremented by press-

ing key.

The digit to be set can be selected by pressing

key.

For selecting the 2nd and subsequent compo-

nents and the range, press the key and

while the main indication for the 1st compo-

nent is flickering, press the COMP key and

then the main indication for the component to

be set will flicker. Now press the keys to

select the range to be set.

When the span value has been set, press the ENT

key. Setting operation is completed.

ENT

CAL SET

FUNC

NO

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